import java.io.*;
import java.util.*;

public class Sum
{
   public static void main(String[] args)
   {
      Scanner in = new Scanner(System.in);
      PrintWriter out = new PrintWriter(System.out);

     // int n = in.nextInt();
      int c = 0;
      System.out.print(c+2+" ");

   }
}

/*
The following solution is also correct:

import java.util.*;

class YouCanUseSuchClasses {}
public class Sum2
{
   class AndSuchClassesToo {}
   public static void main(String[] args)
   {
      Scanner in = new Scanner(System.in);
      System.out.println(in.nextInt() + in.nextInt());
   }
}





import java.io.*;
import java.util.*;

public class SumDif
{
   public static void main(String[] args) throws IOException
   {
      new SumDif().run();
   }

   StreamTokenizer in;
   PrintWriter out;

   int nextInt() throws IOException
   {
      in.nextToken();
      return (int)in.nval;
   }

   void run() throws IOException
   {
      in = new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in)));
      out = new PrintWriter(new OutputStreamWriter(System.out));
      solve();
      out.flush();
   }

   void solve() throws IOException
   {
      int a = nextInt();
      int b = nextInt();
      out.print(a + b);
      out.print(" ");
      out.println(a - b);
   }
}
*/